种群生物量的测定模型

种群生物量的测定模型

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Initial contribute: 2018-12-04

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岳天祥编著
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yue@lreis.ac.cn
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Classification(s)

Method-focused categoriesData-perspectiveGeostatistical analysis
Method-focused categoriesProcess-perspectivePhysical process calculation
Method-focused categoriesProcess-perspectiveBiological process calculation

Detailed Description

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种群生物量的测定模型

    1)标准木的胸径和高度模型:

式中,n为每层中种群总株数;分别为该层中第i株植物的胸径和高度。

2)生物量W模型:


式中,ab为待定系数;DH分别为胸径和树高。

3)净第一性生产力模型:

式中,为总光合量;为叶子的呼吸量;,为其他器官的呼吸量;T为总光合量;S为总叶面积;W为呼吸器官干重;

为净光合作用速度;

为呼吸作用速度。

式中,为叶室或呼吸装置内外气体浓度差;V为叶室或呼吸装置内外气体流量;A为叶面积;gWD为呼吸器官的干重;T为大气压。

4)光能利用效率模型:


式中,为各层植物光合产量的效率系数(%);为群落总生产力的效率系数;18.5为克干物质的含能量;为被吸收的光的有效辐射能。

 

 

参考文献

    彭少麟,张祝平:鼎湖山阔叶混交林的第一性生产力研究。生态学报,1994143

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《资源环境数学模型手册》 (2018). 种群生物量的测定模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/7ead1fba-9ff8-4f8d-9e05-331d2c5fcc02
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Last modifier
Zhen Qian
Last modify time
2020-11-11
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Contributor(s)

Initial contribute : 2018-12-04

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Authorship

:  
岳天祥编著
:  
yue@lreis.ac.cn
:  
View
Is authorship not correct? Feed back

History

Last modifier
Zhen Qian
Last modify time
2020-11-11
Modify times
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